Share Email Print
cover

Proceedings Paper

Real-time video-on-demand system based on distributed servers and an agent-oriented application
Author(s): Minoru Takahata; Akira Uemori; Hirotaka Nakano
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

This video-on-demand service is constructed of distributed servers, including video servers that supply real-time MPEG-1 video & audio, real-time MPEG-1 encoders, and an application server that supplies additional text information and agents for retrieval. This system has three distinctive features that enable it to provide multi viewpoint access to real-time visual information: (1) The terminal application uses an agent-oriented approach that allows the system to be easily extended. The agents are implemented using a commercial authoring tool plus additional objects that communicate with the video servers by using TCP/IP protocols. (2) The application server manages the agents, automatically processes text information and is able to handle unexpected alterations of the contents. (3) The distributed system has an economical, flexible architecture to store long video streams. The real-time MPEG-1 encoder system is based on multi channel phase-shifting processing. We also describe a practical application of this system, a prototype TV-on-demand service called TVOD. This provides access to broadcast television programs for the previous week.

Paper Details

Date Published: 16 February 1996
PDF: 10 pages
Proc. SPIE 2663, Very High Resolution and Quality Imaging, (16 February 1996); doi: 10.1117/12.233038
Show Author Affiliations
Minoru Takahata, NTT Human Interface Labs. (Japan)
Akira Uemori, NTT Human Interface Labs. (Japan)
Hirotaka Nakano, NTT Human Interface Labs. (Japan)


Published in SPIE Proceedings Vol. 2663:
Very High Resolution and Quality Imaging
V. Ralph Algazi; Sadayasu Ono; Andrew G. Tescher, Editor(s)

© SPIE. Terms of Use
Back to Top